CSS Wizardry

OCTOBER 27, 2018

The short answers are, of course ‘all the time’ and ‘everyone’, but this mutual disownership is a common reason why performance often gets overlooked. Of course, it is impossible to fix (or even find) every performance issue during the development phase. The reason I refer to this as Proactive testing is becasue we generally do.

Performance Testing 211

Performance Testing Testing Performance Strategy 211

Percona

JULY 20, 2023

We often forget or take for granted the network hops involved and the additional overhead it creates on the overall performance. TCP/IP connection, triggered me to write about other aspects of network impact on performance. How to detect and measure the impact There is no easy mechanism for measuring the impact of network overhead.

Network 75

Network Performance Latency Servers 75

High Scalability

MARCH 22, 2019

µs of replication latency on lossy Ethernet, which is faster than or comparable to specialized replication systems that use programmable switches, FPGAs, or RDMA.". At some point, the e-mail I send over WiFi will hit a wire, of course". We achieve 5.5 slobodan_ : "It is serverless the same way WiFi is wireless.

Internet 134

Internet Internet Scalability Wireless 134

VoltDB

MAY 14, 2024

Balancing Low Latency, High Availability and Cloud Choice Cloud hosting is no longer just an option — it’s now, in many cases, the default choice. Long-tail latency spikes would break a lot of if not most time-sensitive use cases, like IoT device control. But the cloud computing market, having grown to a whopping $483.9

Latency 52

Latency Availability Cloud Hardware 52

All Things Distributed

OCTOBER 25, 2018

The new AWS Africa (Cape Town) Region will have three Availability Zones and provide lower latency to end users across Sub-Saharan Africa. That's where we built many pioneering networking technologies, our next-generation software for customer support, and the technology behind our compute service, Amazon EC2.

AWS 167

AWS Cloud Education Programming 167

The Morning Paper

JANUARY 30, 2020

Edge servers are the middle ground – more compute power than a mobile device, but with latency of just a few ms. The client MWW combines these estimates with an estimate of the input/output transmission time (latency) to find the worker with the minimum overall execution latency. The opencv app has the largest state (4.6

Mobile 104

Mobile Cloud Latency Games 104

Sutter's Mill

FEBRUARY 13, 2017

Tue-Thu Apr 25-27: High-Performance and Low-Latency C++ (Stockholm). On April 25-27, I’ll be in Stockholm (Kista) giving a three-day seminar on “High-Performance and Low-Latency C++.” If you’re interested in attending, please check out the links, and I look forward to meeting and re-meeting many of you there.

Latency 48

Latency C++ Hardware Performance 48

The Morning Paper

JANUARY 28, 2020

Shredder is " a low-latency multi-tenant cloud store that allows small units of computation to be performed directly within storage nodes. " " Running end-user compute inside the datastore is not without its challenges of course. " Running end-user compute inside the datastore is not without its challenges of course.

Serverless 99

Serverless Storage Latency Cloud 99

Smashing Magazine

NOVEMBER 8, 2021

As developers, we rightfully obsess about the customer experience, relentlessly working to squeeze every millisecond out of the critical rendering path, optimize input latency, and eliminate jank. And, of course, the result needs to be seamless and delightful — dare we say, even fun — to develop and maintain. Ilya Grigorik.

Cache 139

Cache Best Practices Strategy Servers 139

Smashing Magazine

MARCH 25, 2021

A performance budget as a mechanism for planning a web experience and preventing performance decay might consist of the following yardsticks: Overall page weight, Total number of HTTP requests, Page-load time on a particular mobile network, First Input Delay (FID). And of course, you need to host and deliver your images.

Media 122

Media Performance Mobile Latency 122

The Morning Paper

NOVEMBER 15, 2020

Options 1 and 2 are of course the ‘scale out’ options, whereas option 3 is ‘scale up’. An IDS/IPS monitors network flows and matches incoming packets (or more strictly, Protocol Data Units, PDUs) against a set of rules. This makes the whole system latency sensitive. Increasing the amount of work we can do on a single unit.

Servers 128

Servers Hardware Latency Design 128

All Things Distributed

MARCH 26, 2018

Even though the network design for each data center is massively redundant, interruptions can still occur. No two zones are allowed to share low-level core dependencies, such as power supply or a core network. One is that the latency within a zone is incredibly fast. " Silo your traffic or not – you choose.

AWS 110

AWS Latency Lambda Architecture 110

Smashing Magazine

AUGUST 9, 2021

You’ve probably heard things like: “HTTP/3 is much faster than HTTP/2 when there is packet loss”, or “HTTP/3 connections have less latency and take less time to set up”, and probably “HTTP/3 can send data more quickly and can send more resources in parallel”. and lower), this typically takes two network round trips.

Transportation 145

Transportation Internet Internet Network 145

The Morning Paper

FEBRUARY 6, 2020

Oh, and there’s a scheduler too of course to keep all the plates spinning. On the Cloudburst design teams’ wish list: A running function’s ‘hot’ data should be kept physically nearby for low-latency access. A low-latency autoscaling KVS can serve as both global storage and a DHT-like overlay network.

Serverless 98

Serverless Lambda Cache Latency 98

Scalegrid

FEBRUARY 8, 2024

Durability Availability Fault tolerance These combined outcomes help minimize latency experienced by clients spread across different geographical regions. By breaking up large datasets into more manageable pieces, each segment can be assigned to various network nodes for storage and management purposes.

Storage 130

Storage Systems Big Data Azure 130

The Morning Paper

MARCH 3, 2020

This work is latency critical, because volume IO is blocked until it is complete. Physalia is designed to offer consistency and high-availability, even under network partitions. And, of course, it is designed to minimise the blast radius of any failures that do occur. Larger cells have better tolerance of tail latency (e.g.

Database 106

Database AWS Network Design 106

The Morning Paper

JUNE 23, 2019

In ProtoCache (a component of a widely used Google application), 27% of its latency when using a traditional S+RInK design came from marshalling/un-marshalling. The network latency of fetching data over the network, even considering fast data center networks. Fetching too much data in a single query (i.e.,

Cache 79

Cache Latency Google Network 79

All Things Distributed

DECEMBER 12, 2018

They can run applications in Sweden, serve end users across the Nordics with lower latency, and leverage advanced technologies such as containers, serverless computing, and more. We launched Edge Network locations in Denmark, Finland, Norway, and Sweden. Our AWS Europe (Stockholm) Region is open for business now.

AWS 119

AWS Cloud Games Serverless 119

The Netflix TechBlog

JANUARY 24, 2022

Technically, “performance” metrics are those relating to the responsiveness or latency of the app, including start up time. Both of these metrics will fluctuate over the course of a test, so we post metric values at regular intervals throughout the test. so are power levels and network bandwidth. What do we mean by Performance?

Performance 208

Performance Performance Testing Metrics Testing 208

The Netflix TechBlog

DECEMBER 2, 2019

Suppose the encoding team develops more efficient encodes that improve video quality for members with the lowest quality (those streaming on low bandwidth networks). Your instinct might tell you this is caused by an unusually slow network, but you still become frustrated that the video quality is not perfect.

Metrics 146

Metrics Strategy Testing Efficiency 146

The Netflix TechBlog

DECEMBER 2, 2019

Suppose the encoding team develops more efficient encodes that improve video quality for members with the lowest quality (those streaming on low bandwidth networks). Your instinct might tell you this is caused by an unusually slow network, but you still become frustrated that the video quality is not perfect.

Metrics 143

Metrics Strategy Testing Efficiency 143

All Things Distributed

JUNE 21, 2017

DynamoDB delivers predictable performance and single digit millisecond latencies for reads and writes to your application, whether you're just getting started and want to perform hundreds of reads or writes per second in dev and test, or you're operating at scale in production performing millions of reads and writes per second.

Speed 95

Speed Cache Latency AWS 95

Smashing Magazine

AUGUST 10, 2023

There are ways around that, of course. The other issue is that the data I’m getting back is based on lab simulations where I can add throttling, determine the device that’s used, and the network connection, among other simulated conditions. On that note, it’s worth calling out that there are multiple flavors of network throttling.

Speed 85

Speed Monitoring Testing Network 85

The Morning Paper

FEBRUARY 23, 2020

There are five different types of member in an AnyLog system, and any network node can join without restriction as any type of member. Publishers are the producers of the actual data to be served by the network. Given their position of power in the network, such caching seems to be highly incentivised in the absence of such mechanisms.

Blockchain 94

Blockchain Internet Internet IoT 94

Dotcom-Montior

MAY 12, 2020

They now allow users to interact more with the company in the form of online forms, shopping carts, Content Management Systems (CMS), online courses, etc. Network or connection error. Network latency. Network Latency. Network latency can be affected due to. The list goes on and on. HTTP error.

Monitoring 63

Monitoring Entertainment Hardware Traffic 63

The Netflix TechBlog

DECEMBER 2, 2019

Suppose the encoding team develops more efficient encodes that improve video quality for members with the lowest quality (those streaming on low bandwidth networks). Your instinct might tell you this is caused by an unusually slow network, but you still become frustrated that the video quality is not perfect.

Metrics 130

Metrics Strategy Testing Efficiency 130

Smashing Magazine

SEPTEMBER 6, 2021

Next, we’ll look at how to set up servers and clients (that’s the hard part unless you’re using a content delivery network (CDN)). Using just a few (but still more than one), however, could nicely balance congestion growth with better performance, especially on high-speed networks. Servers and Networks. Network Configuration.

Network 120

Network Servers Cache Traffic 120

All Things Distributed

OCTOBER 2, 2017

" Of course, no technology change happens in isolation, and at the same time NoSQL was evolving, so was cloud computing. VPC Endpoints give you the ability to control whether network traffic between your application and DynamoDB traverses the public Internet or stays within your virtual private cloud.

Internet 111

Internet Internet AWS Performance 111

The Morning Paper

JANUARY 26, 2020

If the edit creates a new, unlogged network request, then the replay framework must inject new network events into the log. Of course you’d hope the authors were able to use their own tool effectively! The evaluation also includes a small study with six front-end web developers asked to debug a problem in a web app.

Programming 86

Programming Servers Network Latency 86

Alex Russell

MAY 9, 2022

This is a complex topic, but to borrow from a recent post , web performance expands access to information and services by reducing latency and variance across interactions in a session, with a particular focus on the tail of the distribution (P75+). Consistent performance matters just as much as low average latency. What's the problem?

Performance 99

Performance Latency Metrics Engineering 99

Alex Russell

JANUARY 30, 2024

It's time once again to update our priors regarding the global device and network situation. seconds on the target device and network profile, consuming 120KiB of critical path resources to become interactive, only 8KiB of which is script. What's changed since last year? and 75KiB of JavaScript. These are generous targets.

Performance 98

Performance Network Mobile Speed 98

CSS - Tricks

APRIL 1, 2021

Redirects are often pretty light in terms of the latency that they add to a website, but they are an easy first thing to check, and they can generally be removed with little effort. Using a network request inspector, I’m going to see if there’s anything we can remove via the Network panel in DevTools.

Cache 94

Cache Social Media Media Website 94

High Scalability

FEBRUARY 19, 2021

Treating failure as a matter of course. In particular, they are not effective in networks spanning multiple regions because their efficiency breaks down if the latency becomes too high when communicating among peers. Fault tolerant designs treat failures as routine. Health is not binary.

Engineering 165

Engineering Systems Availability Scalability 165

Dotcom-Montior

NOVEMBER 16, 2021

Since that time, the SRE role has evolved as the industry has changed and shifted from the traditional monolithic structures to large, widely distributed networks and microservices. As defined by the Google SRE initiative, the four golden signals of monitoring include the following metrics: Latency.

Monitoring 91

Monitoring Google DevOps Engineering 91

Alex Russell

OCTOBER 22, 2017

We constrain ourselves to a real-world baseline device + network configuration to measure progress. Budgets are scaled to a benchmark network & device. JavaScript is the single most expensive part of any page in ways that are a function of both network capacity and device speed. The median user is on a slow network.

Performance 74

Performance Network Benchmarking Mobile 74

The Morning Paper

JUNE 13, 2019

Making queries to an inference engine has many of the same throughput, latency, and cost considerations as making queries to a datastore, and more and more applications are coming to depend on such queries. First off there still is a model of course (but then there are servers hiding behind a serverless abstraction too!). autoscaling).

Hardware 58

Hardware Latency Serverless Energy 58

O'Reilly

DECEMBER 2, 2019

The most obvious change 5G might bring about isn’t to cell phones but to local networks, whether at home or in the office. High-speed networks through 5G may represent the next generation of cord cutting. Those waits can be significant, even if you’re on a corporate network. What will 5G mean in practice? I don’t, do you?

Wireless 56

Wireless Serverless IoT Artificial Intelligence 56